Soil Mechanics and Foundation Engineering Multiple Choice Questions - Set 23 - ObjectiveBooks

Soil Mechanics and Foundation Engineering Multiple Choice Questions - Set 23

Practice Test: Question Set - 23


1. If ‘C’ is cohesion, ‘F’ is factor of safety, ‘γ’ is unit weight of soil and ‘H’C is the maximum height of embankment, the stability number, is
    (A) F/CγH
    (B) C/FγH
    (C) H/CFγ
    (D) γ/CFH

2. In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as
    (A) Consolidated drained test
    (B) Consolidated undrained test
    (C) Unconsolidated drained test
    (D) Unconsolidated undrained test

3. The specific gravity of quartz, is
    (A) 2.65
    (B) 2.72
    (C) 2.85
    (D) 2.90

4. In hydrometer analysis for a soil mass
    (A) Both meniscus correction and dispersing agent correction are additive
    (B) Both meniscus correction and dispersing agent correction are subtractive
    (C) Meniscus correction is additive and dispersing agent correction is subtractive
    (D) Meniscus correction is subtractive and dispersing agent correction is additive

5. The capillary rise of water
    (A) Depends upon the force responsible
    (B) Increases as the size of the soil particles increases
    (C) Decreases as the size of the soil particles decreases
    (D) Is less in wet soil than in dry soil

6. The value of compression index for a remoulded sample whose liquid limit is 50% is
    (A) 0.028
    (B) 0.28
    (C) 0.36
    (D) 0.036

7. Fine sand possesses
    (A) Good plasticity
    (B) Limited plasticity
    (C) Reasonable plasticity
    (D) Clay

8. Coarse grained soils are best compacted by a
    (A) Drum roller
    (B) Rubber tyred roller
    (C) Sheep's foot roller
    (D) Vibratory roller

9. Darcy's law is applicable to seepage if a soil is
    (A) Homogeneous
    (B) Isotropic
    (C) Incompressible
    (D) All the above

10. According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is
    (A) 0 < PI < 7
    (B) 7<PI< 17
    (C) 17 <PI <27
    (D) PI > 27

11. The coefficient of curvature for a well graded soil, must be between
    (A) 0.5 to 1.0
    (B) 1.0 to 3.0
    (C) 3.0 to 4.0
    (D) 4.0 to 5.0

12. A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/m2. If the effective stress is further increased from 200 kN/m2 to 400 kN/m2, then the settlement of the same clay is
    (A) 10 mm
    (B) 20 mm
    (C) 40 mm
    (D) None of the above

13. The lateral earth pressure on a retaining wall
    (A) Is equal to mass of the soil retained
    (B) Proportional to the depth of the soil
    (C) Proportional to the square of the depth of the soil
    (D) Proportional to the internal friction of the soil

14. If the permeability of a soil is 0.8 mm/sec, the type of soil is
    (A) Gravel
    (B) Sand
    (C) Silt
    (D) Clay

15. A compacted soil sample using 10% moisture content has a weight of 200 g and mass unit weight of 2.0 g/cm3. If the specific gravity of soil particles and water are 2.7 and 1.0, the degree of saturation of the soil is
    (A) 11.1 %
    (B) 55.6 %
    (C) 69.6 %
    (D) None of these

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